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Showing posts from September, 2022

DETAILED ARTICLE ON MEMORY IN COMPUTER.

  MEMORY OF COMPUTER: DETAILED EXPLANATION INTRODUCTION MEMORY IN A COMPUTER IS THE MOST ESSENTIAL COMPONENT THAT STORES DATA, INSTRUCTIONS, AND INFORMATION TEMPORARILY OR PERMANENTLY. IT ACTS AS A BRIDGE BETWEEN THE CENTRAL PROCESSING UNIT (CPU) AND THE STORAGE DEVICES, ENSURING SMOOTH DATA PROCESSING AND RETRIEVAL. WITHOUT MEMORY, A COMPUTER CANNOT PERFORM ANY OPERATION. COMPUTER MEMORY IS BROADLY CATEGORIZED BASED ON ACCESS TIME, CAPACITY, COST, AND VOLATILITY . IT DETERMINES THE PERFORMANCE AND EFFICIENCY OF THE ENTIRE SYSTEM. TYPES OF COMPUTER MEMORY COMPUTER MEMORY IS MAINLY DIVIDED INTO PRIMARY MEMORY AND SECONDARY MEMORY , AND ALSO INCLUDES CACHE MEMORY AND VIRTUAL MEMORY AS SPECIAL TYPES. 1. PRIMARY MEMORY (MAIN MEMORY) PRIMARY MEMORY IS DIRECTLY ACCESSIBLE BY THE CPU. IT IS FAST BUT LIMITED IN SIZE AND VOLATILE IN NATURE, MEANING DATA IS LOST WHEN POWER IS TURNED OFF. CHARACTERISTICS: HIGH SPEED LIMITED STORAGE CAPACITY VOLATILE (T...
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INKJET PRINTER

  INKJET PRINTERS   THE MOST POPULAR TYPE OF PRINTER IN TODAYS MARKET IS INKJET PRINTER.   IT USES A RESERVIOR OF INK, A PUMP AND A NOZZLE.   IT WORKS EFFECIENTLY AND T IS THE CHEAPEST PRINTER IN THE MARKET STARTING 1800 BUT THE PRINTER COST IS HIGHCOMPARING TO OTHERS TYPE OF PRINTER.   IT SPRAYS THE LIQUID INK ON TO A PAPER ACCORDING TO THE PATTERN OF PRINTED    DOCUMENTS.   IT SUPPORTS VERY HIGH DEFINATION OF THE DOCUMENT TYPES.   PARTS OF INKJET PRINTER:- INKJET PRINTER ARE SIMPLE DEVICE.   THEY CONTAINS VERY FEW PARTS.   THEY ARE INEXPENSIVE AND EASILY AVAILABLE IN THE MARKET.THE PARTS CAN BE DIVIDED INTO THE FOLLOWING CATEGORIES   1)       PRINT HEAD OF INK CARTRIDGE à IT CONTAINS LIQUID INK AND TWO HUNDRED TINY NOZZLES TO SPRAY THE INK IN SMALL DROPLETS. MANY TIMES A PRINTER MAYCONTAIN A RESERVOIR OF INK.   MOST COMMON COLOURS ARE USED INTO SEPARATE CARTIDGE ONE FOR BLACK AND...
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HOW TO CONFIGURE VIRTUAL MEMORY IN WINDOWS OPERATING SYSTEM?

    HOW TO CONFIGURE VIRTUAL MEMORY IN WINDOWS OPERATING SYSTEM?   VIRTUAL MEMORY IS A MEMORY MANAGEMENT CAPABILITY OF AN OPERAING SYSTEM THAT USES HARDWARE AND SOFTWARE TO ALLOW A COMPUTER TO COMPENSATE FOR PHYSICAL MEMORY SHORTAGES BY TEMPORARILY TRANSFERING DATA FROM RAM TO INACTIVE SPACE IN HARD DISK DRIVES TO FORM CONTIGOUS ADDRESESES THAT HOLD BOTH THE APPLICATION AND ITS DATA.  NOW LET US SEE HOW TO CONFIGURE VIRTUAL MEMORY? RIGHT CLICK ON MY COMPUTER --> THIS PC   -->PROPERTIES -->ADVANCE SYSTEM SETTING   --> PERFORMANCE SETTING -->ADVANCED   --> VIRTUAL MEMORY   -->CHANGE   --> UNCHECK AUTOMATICALLY MANAGE PAGING FILE SIZE FOR ALL DRIVES --> SELECT CUSTOM SIZE  --> TYPE PAGE FILE SIZE IN MEGA BYTES   -->  CLICK ON SET ---> OK -->OK --> OK --> RESTART THE SYSTEM.  YOU MAY LIKE THIS : HOW DO COMPUTER UNDERSTAND LOGIC YOU MAY LIKE TH...
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HOW DO COMPUTER UNDERSTAND LOGIC

  HOW DO COMPUTER UNDERSTAND THE BINARY LOGIC?   .   I am going to write about binary logic, that most of the computer manufacturers and developers use.                  Binary logic deals with variables that take on two discrete values and with operations that assume logical meaning.   The two values the variables take may be called by different names (e.g. true and false, yes and no, etc.), but for our purpose it is convenient to think in terms of bits and assign the values of 1 and 0.     Binary logic is used to describe, in a mathematical way, the manipulation and processing of binary information.   It is particularly suited for the analysis and design of digital systems.   For example, the digital logical circuits of many circuits that perform binary arithmetic are circuits whose behavior is most conveniently expressed by means of binary variables and logical operations.   The bina...
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HARDWARE COMPONENTS - A SHORT NOTE

HARDWARE COMPONENTS- INPUT AND OUTPUT COMPONENTS IN THIS TOPIC WE DISCUSS THE MAJOR HARDWARE COMPONENTS OF A MICROCOMPUTER SYSTEM, WHICH ARE USED FOR INPUT, OUTPUT, PROCESSING, STORAGE, ELECTRICAL SUPPLY AND COMMUNICATION.     MOST INPUT AND OUTPUT DEVICES ARE OUTSIDE THE COMPUTER CASE.   MOST PROCESSING AND STORAGE COMPONENTS ARE CONTAINED INSIDE THE CASE.   THE MOST IMPORTANT COMPONENT IN THE CASE IS THE CENTRAL PROCESSING UNIT (CPU) IS CALLED THE PROCESSOR AND MICROPROCESSOR.     AS ITS NAME IMPLIES, THE DEVICE IS CENTRAL TO ALL PROCESSING DONE BY THE COMPUTER.   DATA RECEIVED BY INPUT DEVICES IS READ BY THE CPU , AND OUTPUT FROM THE CPU IS WRITTEN TO OUTPUT DEVICES.    THE CPU WRITES DATA AND INSTRUCTION IN STORAGE DEVICES AND PERFORMS CALCULATION AND OTHER DATA PROCESSING.     WHETHER INSIDE OR OUTSIDE THE CASE AND REGARDLESS OF THE FUNCTION THE DEVICE PERFORMS,   EACH HARDWARE INPUT, OUTPUT, OR STORAGE DEVIC...
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GENERAL FEATURES OF WINDOWS 7

  GENERAL FEATURES OF WINDOWS 7   EVERY LIVING BEING HAS SOME COMMON GENERAL FEATURES THAT DISTINGUISH THEM AMONG OTHER LIVING BEINGS.  FEATURES MEAN PROPERTIES THAT UNIQUELY IDENTIFY  THEM FROM OTHERS.  THIS APPLIES TO LIVING AS WELL AS NON LIVING THINGS ON EARTH.   I AM GOING TO SHOW FEW OF THEM.   SO LET’S BEGIN. WE ARE GOING TO DISCUSS ABOUT SOME FEATURES OF  WINDOWS 7   ·                  THE NEW TASKBAR  – THE TASKBAR IS LOCATED AT THE BOTTOM OF THE WINDOWS DESKTOP.  BY DEFAULT WHEN AN APPLICATION OPENS YOU WILL SEE ITS ICON APPEAR IN THE TASKBAR.  HOWEVER,  WHEN THE APPLICATION IS CLOSED, THE ICON GOES AWAY.  FOR COMMONLY ACCESSED APPLICATION, USERS CAN PLACE A PERMANENT ICON ON EITHER THE TASKBAR OR IN THE START MENU.  THIS IS REFERRED AS “PINNING”.  TO PIN A PROGRAM TO THE TASK BAR,...
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